Gas cartridge firing device



,May 1 35- s. M. ABBOTT GAS CARTRIDGE FIRING DEVICE Filed Sept. 28, 1952 A5507? mk InJenTcT: div/Z L "a gascartridge of greater volume; t,

" GASEMEFBI G r mi fn Scott Mi Alibottg chicagog 111; f

I Application sit niher2 lZ-his invention relates, to: improvements in. as cartridge firing devices andiit consists orthen 'atters hereinafter describedand more particularly pointed outin the appendedQclaimsLp 1 1 The primary object of the invention is to'proe videya small eompactdevice for firinga chemical cartridge to produce a discharge of tear or like a 3:1 Pf A further; object of the invention is toprovide a device of .1 this} kind I which though shorter in. overall" length than other devices, ;now on the jmarg ket for the samepurpose, is capable, of employing Another object of the invention is tov -;a device of this kindincluding .a casing and a barrel partway withdrawable from andxretractr able intouthe casing; the latter so holding the car;

tridge that thebarrel in its retra'cting movement operates tofire'the same, thea-gasbeing; dischargedout through the barrel;

The above mentioned o jects f the-i vention; aswell as others, together withthe many advan .ta stherwi w lm re ll ree P seed with my-specification i i Inthedrawing-z V Fig. lisa perspective view of a gas cartridge firing device embodying the preferred formfofe my inventions-shown in its cocked 'position. v Fig. 2 isalong'itudinal sectional View through the same showing the parts-in:said,cocked; posi- 'tion. 1 q

Fig.3isa viewsimilarto Fig. 2 showing the parts in. (the position they ,occupy "when" thelde vice hasheen fired. 1 i I r V Fig 4; is a transverse sectionalview through the same as takenon the lined-4 of Fig. 2. 'Fig. 5 is a perspective viewer the barreljof the device r F -1 4s -ners ev e Q a e n l f embodied in the improved device for pro viding a seat or" shoulder for the cartridge;

Fig.7 is a perspective view of a removable breech-block embodied in my improveddevice. gyIn general, the improved; device includesa tu- -bular casing closedat one end by a removable 'breech lilock' and associated ,with the, other end of the: easing is a spring pressed barrel whichimay A be pairtwayfwithdrawn therefrom into cocked po-V sition-and held insaid position .by a trigger.- The first mentioned end'of; the casing is soformed as toreceive the fulminating cap end tof the caritridge with said cap arrangedficlosely' adjacent "a-firing pin on thebreech-block."

The innerend of 'said barreliis formed to rec'eive the "other end offthe cartridge with a sliding sgiesaseriai-no. 635,214

(ol."42 2 fit andds provided with an internal shoulder.

VWhen the triggerisactuated to releasethebar- V rel" and.= the 'samecis retracted into theIcQsi'ng by-its associated sp'ring, said shoulder engages said otherend: of the cartridge and forcefully moves the same-jagainst-rthe firing pin todischarge the cartridge, Means are provided whereb'vtheztrig ger masir loe held at safety whjenj the barrel is 1 in cocked position so that the device may be car ried in thepocket onsupported inthis condition 7 from ahook or the like by means'of a ringv connected t the breechblock. 5- Referring now vin detail to the, invention, illustrated drawingzm i i 1 indicates as a whole the tubular'loasing or holder ofthe'device, which is internally threaded atsone endand is provided atits other end with.

that ernloodirnerrt of i e ce ee "lean"inturnedradialflange 2 that defines'an opene iriglt insaid last mentionedend of the casing orholder. v On the outside'o'f the rlangei is a semicircular annular flange' l and on the inside thereof is a complete annularflangei 4a,} I

Threaded into the first mentioned end-of the casing is a ring5 Lbest. sh'ownin perspective in Fig. 6 and this ring is providedinjits outer end 'with an annular seat 5a tojreceive the closed and flanged end 6 of a 'g'as'cartridge, 'l. This vcartridge is of jthe kind having the conventional "center fulminating cap (not shown); Remov ably threadedinto said'last. mentioned end of the casing is a breech-block 8 that closes-said end of the casing. Inthe inside'oif-saidblock is are mass 9 era diameter to receive the flange ofthe cartridge and centrally in saideblock is mounted a is provided-withia boss H "in which is operatively engaged a ringJZ by means of whichjthedevice rasl aiwhole ,may be suspended from a suitable ta flanged ring;l5and nidway;betweenitsends, Y r

*said barrel is provided in its exterior with an annular groove defining a radial shoulder I6 that extends 'completely around'said barrel.

i i'The inner or flanged end of the barrel has'an internal diameter for a part of its length that snugly receives the discharge end of the cartridge of the cartridge is guidingly supported. The outer end of said barrel has an internal diameter slightly less than that of the first mentioned end, thus providing an annular shoulder H on the inside of the barrel;

, Surrounding the barrel and extending between the flange 14 thereof and the flange 2 of the casing is a helical expansion spring 18 which normally acts to urge the barrel into its retracted position toward the breech-block end of the casing.

l9 indicates a trigger that normally acts to hold the barrel in its partly withdrawn, cocked position but which may be manipulated to release, 7 the barrel whereby the spring l8 retracts the bar-:

rel into firing position. Said trig er includes'a stem 20 having the desired flexibilityand-one end thereof is made to provideahook 2L that may be inserted into an opening 22 provided in one side the casing. The other end ofsaid trigger is made as a ring 23 that projects over the flanged end 2 of the casing and surrounds the barrel as well as the semicircular flanged thereon; r a The trigger I9 is made of spring stock which normally urges the stemawa-y from the casing and thusholdsthat side of the ring 23 opposite the stem in close engagement with the barrel. By reason'of said ring surrounding the semicircular flange 4, said ringis held against a laterally shifting movement.

Slidableon the stem ofthe trigger is a safety catch 24 that has an inside extension25 at that end associated with the flanged end of the casing, When the catch is slid down the trigger stem,

toward: its hooked end 2|, then the'extension so engages the side of the casing as to prevent the breech-block isnext replacedandlthis spaces the fulminating cap of the cartridge closely adjacent the firing pin. H3 in the breech-block.

Tocock the device, the-breech-block. end is held in one hand and the other hand is then enrplo-yed to grasp the ring IS on the barrel. The operator theniexerts a relative pulling movement between. the casing and barrel and this with draws'thejbarrel partwayout of the casing" and places the spring !8 under compression.

Inthis movement 'of the barrel out of the ,cas-

' ing, so soon as the shoulder l6 passes the ring 23 of the trigger, said ring snaps into position behind .said shoulder'and holds the barrel in, its cocked position. In sorcocking the device, the flange M on thebarrel will engage the hooked end 2| of the trigger stem 20 inside of the casing and thus limit'the' withdrawalniovement of the barrel. To look the barrel in'its cocked position the 7 safety catch is slid down the trigger stem so that the-extension 25 engages'the barrel and prevents inward movement of the stem. 7 5

With the device in a cockedipositiom'to fire the same,it is held one hand with the thumb Y engaged with the safety catch; By a movement of the thumb, thelcatch is slid' upon the stem so as to bring itsextension-beyo'nd the end of the casing when a slight inward thumb pressure is imposed upon the catch. This will remove the ring 23 from under theshoulder l6, when the spring l8 will forcefully urge orretract the barrel into the casing.

Whenthe internal shoulder ll of the barrel engages the discharge end of the cartridge, it acts to move the cartridge toward the breechblock. In this movement of V the cartridge, its fulminating cap is engaged with the firing pin. The cartridge is thus fired and discharges its contents as a gas out through the barrel.

After one operation, the empty cartridges is withdrawn and replaced by a loaded one and the device is ready for the next operation. In this respectfit' is pointed out that it may be safely carried loaded in the pocket in either its-cocked or uncooked condition.

"By reason'o'f using a sliding or'movable barrel as described, a longer cartridge having a greater gas capacity may be employed in a device having shorter overall length than has heretofore-been possible. a I The dev'ice'compr-"ises but a few parts which are simple to make'and easy to assemble and thus the devicec'an' be made and sold at a relatively low cost and it is easyto operate and is safe in it Sfoperation. I a

' While in describing the invention, I have re' feired'in detail to the form, arrangement and construction ofthe various parts thereof, the

, same is to be considered merely as illustrative so that I do not wish'to be limited thereto, except asmay be specifically set forth in the appended claims. 7

I claim as my inventionf I 3 1. In a device ofthe kind describeda casing, a barrel partway withdrawable from and retractable into one end of said leasing, means providing an'external annular shoulder on said barrel positio n ed beyond said "end of said casing when said barrel is so partway withdrawn therefrom, means movable transversely of said end of the casing for releasably engaging said shoulder, and means associated with fixed parts of said casing and barrel and operating when said barrel is thus released to 'cause a forceful retraction thereof into said casing.

2. In a device of the kind described, a casing, a barrel partway withdrawable from and retractable into one end of said casing, mean s' providing'an external annular shoulder on said barrel positioned beyond said end of said casing when said barrel is so partway withdrawn therefrom, means carried by the casing and including a part associated with said end of the casing and surrounding said barrel and adapted to engage said shoulder to releasably hold the barrel in said partway Withdrawn position, and means associated'with fixed parts of said casing and barrel respectively and operating upon release of said barrel to forcefully retract the barrel into said casing. y v w 3. In a device of the kind described, a casing, a barrel partway withdrawable from and retractable into one end of the casing, means providing an external annular shoulder on said barrel positioned beyond said end of said casing when said barrel is so partway withdrawn therefrom, means carried by the casing and including a part associated withisaid end of the casing and surrounding said barrel and adapted to engage said shoulderto releasably hold the barrel in said partway withdrawn position, means associated-with fixed parts of said casing'and barrel respectively and operating upon release of saidbarrel to forcei as to fire the. same.

fully retract the barrel into said casing, and means for locking said releasing means againstoperation; I

4. A device of the kind described embodying therein a tubular casing, means removably engaged in one endiof said'casing and coacting V therewith in holding a cartridge, abarrel partway withdrawable from and retractable into the other end of said casing, means on one 'end of saidbarrel and normally arranged without said end of the casing for grasping iandwithdrawing the same, spring means in said casing and so engaging said barrel as to act in normally retracting the same into the casing and meanson the outside of the casing and operating to engage a:

fixed part of the barrel when so partway withdrawn as to hold said barrel in saidpartway.

- withdrawn position','said meansbeing manipu mally acting to cause a forceful retraction of the barrel into the casing, releasable means for holdingthe barrel in its projected position, means fixed with'respect to saidend of the casing for holding one end of a cartridge, the othervend of which extends into the barrel when the same is 'in its projected position, and means on the -inside of the barrel for engaging the last men -tioned end of the ,cartridgelwhen said holding means is released for causing a movement of said cartridge so that its flanged end engages said firing. element;

6. A single shotgas cartridge firing device embodying therein a tubular casing, a barrel telescopicallymounted in one end of the casing, a

breech-block removably engaged in the other end of the casing, a firing element carried by said breech-block, meansnormally acting to cause a forceful retraction of the barreltoward said other end-of the casing, releasable means for holding the barrel in' its projected position, means immovablysecured in said breech-block end of *the casing for guidingly holding the flanged end of a cartridge, the other end of which extends into thebarr'el when the same is in its projected position and means on the inside of the barrel for engaging the last mentioned end of the cartridge when said holding means is released for causing a movement of said cartridge so that its end engages said firing element.

flanged i '7. A single shot gas cartridge firing device embodying therein, a casing, a barrel partway withdrawable from'and retractable into one end of the casing, releasable means associated with said end of the casing for holding the barrel in its partway withdrawn position with respect to said'end of the casing; a fixed annular member the flanged end ofa cartridge, after the same has beeninserted therethrough' in theloading of the device, the other end of the cartridge then engaging in said barrel when the same is in its partway withdrawn position, an internal shoulder in said barrel spaced from the associated end of thecartridge when the barrel is in its partway withdrawn position, a'firing element in said other end of the casing beyond said annular member,

and means operating upon release of said holding means for retracting the barrel into the easing so that said internal shoulder engages the associatedend of the cartridge to forcefully move theyfianged end thereof in guided engagement element. 7

8. A single shot gas'cartridge firing device embodying therein, a casing, a barrel partway'with- 'drawable from and retractable into one end of the casing, releasable means associated with said partway withdrawn position withlrespect 'to said end of V the casing, a breech-block removably engaged in the other end of the casing, a firing element carried bylsaid block, a fixed annularmember forwardly of the breech-block for holding. the

been inserted therethrough in the loading of the device, the other end of the cartridge then engaging in said barrel when .the same is in its.

partway withdrawn position, an internal shoulder in said barrel spaced from the'associated end of the cartridge when said barrel is in its'part-V way withdrawn position, and means: operating upon. the} release of said holding means for retracting the barrel into the casingisothat said shoulder engages its associated end of theycartridge to forcefully move the flanged end there- ,of in guided engagement with-said annular member against said firing element.

10 adjacent the other end of said casing for holding r '25 with said annularfmember, against the firing 'end of the casing for holdingthe barrel in itsfl flanged-end of a cartridge after theca'rtridge has" 

